Lens for infrared radiation sensor



FIG. 1 is a perspective view of a lens for an infrared radiation sensor according to the invention;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a cross-sectional view thereof taken along line 8-8 of FIG. 3.

The broken line showing across various surfaces in FIG. 8 is included for the purpose of depicting cross section and form no part of the claimed design. 

CLAIM We claim the ornamental design for a lens for an infrared radiation sensor, as shown and described. 